[meta.reflection.member.queries] Replace "Constant When" with "Throws"

Author: eisenwave

source/meta.tex

@@ -5276,16 +5276,17 @@
 \end{itemdecl}
 
 \begin{itemdescr}
-\pnum
-\constantwhen
-\tcode{dealias(type)} represents a class type
-that is complete from some point in the evaluation context.
-
 \pnum
 \returns
 A \tcode{vector} containing each element of \tcode{bases_of(type, ctx)}
 followed by each element of \tcode{non\-static_data_mem\-bers_of(\brk{}type,\brk{} ctx)},
 preserving their order.
+
+\pnum
+\throws
+\tcode{meta::exception} unless
+\tcode{dealias(type)} represents a class type
+that is complete from some point in the evaluation context.
 \end{itemdescr}
 
 \indexlibraryglobal{enumerators_of}%